NR 507 EXAM 4 – ADVANCED
PATHOPHYSIOLOGY QUESTIONS &
ANSWERS (CHAMBERLAIN) 100%
GUARANTEE PASS
1. Which of the following is the primary pathophysiological mechanism behind Polycystic
Ovary Syndrome (PCOS)?
A. Excessive production of follicle-stimulating hormone (FSH)
B. Insulin resistance and hyperinsulinemia leading to excessive androgen production
C. Decreased sensitivity to luteinizing hormone (LH)
D. Primary ovarian failure due to genetic mutation
Answer: B
Conceptual Explanation: PCOS is characterized by insulin resistance which triggers
hyperinsulinemia. This stimulates the ovaries to produce excess androgens and decreases
sex hormone-binding globulin, leading to the clinical manifestations of the syndrome.
2. In the context of endometriosis, what is the most widely accepted theory regarding the
presence of ectopic endometrial tissue?
A. Coelomic metaplasia
B. Vascular dissemination
,C. Lymphatic spread
D. Retrograde menstruation
Answer: D
Conceptual Explanation: Sampson’s theory of retrograde menstruation suggests that
menstrual blood containing endometrial cells flows back through the fallopian tubes into
the peritoneal cavity, where the cells implant and grow.
3. Benign Prostatic Hyperplasia (BPH) primarily involves the hyperplasia of which part of the
prostate?
A. Peripheral zone
B. Anterior fibromuscular stroma
C. Central zone
D. Transition zone
Answer: D
Conceptual Explanation: BPH typically develops in the transition zone of the prostate,
which surrounds the urethra, leading to the characteristic obstructive urinary symptoms.
4. A 45-year-old male presents with severe flank pain radiating to the groin and hematuria. If
the stone is composed of calcium oxalate, which factor is most likely to have contributed to
its formation?
A. Alkaline urine pH
, B. High levels of urinary citrate
C. Hyperoxaluria and hypocitraturia
D. Chronic urinary tract infection with Proteus
Answer: C
Conceptual Explanation: Calcium oxalate stones form in conditions of high oxalate and
low citrate (which is a stone inhibitor). Alkaline pH usually favors calcium phosphate or
struvite stones.
5. Which mechanism explains the development of anemia in patients with Chronic Kidney
Disease (CKD)?
A. Increased destruction of red blood cells in the spleen
B. Iron deficiency due to poor intestinal absorption
C. Inadequate production of erythropoietin by the kidneys
D. Chronic blood loss during hemodialysis
Answer: C
Conceptual Explanation: The kidneys are the primary site of erythropoietin production.
As renal function declines, the peritubular fibroblasts fail to produce sufficient EPO, leading
to normocytic normochromic anemia.
6. Which of the following is a hallmark of Nephrotic Syndrome?
A. Gross hematuria and RBC casts
PATHOPHYSIOLOGY QUESTIONS &
ANSWERS (CHAMBERLAIN) 100%
GUARANTEE PASS
1. Which of the following is the primary pathophysiological mechanism behind Polycystic
Ovary Syndrome (PCOS)?
A. Excessive production of follicle-stimulating hormone (FSH)
B. Insulin resistance and hyperinsulinemia leading to excessive androgen production
C. Decreased sensitivity to luteinizing hormone (LH)
D. Primary ovarian failure due to genetic mutation
Answer: B
Conceptual Explanation: PCOS is characterized by insulin resistance which triggers
hyperinsulinemia. This stimulates the ovaries to produce excess androgens and decreases
sex hormone-binding globulin, leading to the clinical manifestations of the syndrome.
2. In the context of endometriosis, what is the most widely accepted theory regarding the
presence of ectopic endometrial tissue?
A. Coelomic metaplasia
B. Vascular dissemination
,C. Lymphatic spread
D. Retrograde menstruation
Answer: D
Conceptual Explanation: Sampson’s theory of retrograde menstruation suggests that
menstrual blood containing endometrial cells flows back through the fallopian tubes into
the peritoneal cavity, where the cells implant and grow.
3. Benign Prostatic Hyperplasia (BPH) primarily involves the hyperplasia of which part of the
prostate?
A. Peripheral zone
B. Anterior fibromuscular stroma
C. Central zone
D. Transition zone
Answer: D
Conceptual Explanation: BPH typically develops in the transition zone of the prostate,
which surrounds the urethra, leading to the characteristic obstructive urinary symptoms.
4. A 45-year-old male presents with severe flank pain radiating to the groin and hematuria. If
the stone is composed of calcium oxalate, which factor is most likely to have contributed to
its formation?
A. Alkaline urine pH
, B. High levels of urinary citrate
C. Hyperoxaluria and hypocitraturia
D. Chronic urinary tract infection with Proteus
Answer: C
Conceptual Explanation: Calcium oxalate stones form in conditions of high oxalate and
low citrate (which is a stone inhibitor). Alkaline pH usually favors calcium phosphate or
struvite stones.
5. Which mechanism explains the development of anemia in patients with Chronic Kidney
Disease (CKD)?
A. Increased destruction of red blood cells in the spleen
B. Iron deficiency due to poor intestinal absorption
C. Inadequate production of erythropoietin by the kidneys
D. Chronic blood loss during hemodialysis
Answer: C
Conceptual Explanation: The kidneys are the primary site of erythropoietin production.
As renal function declines, the peritubular fibroblasts fail to produce sufficient EPO, leading
to normocytic normochromic anemia.
6. Which of the following is a hallmark of Nephrotic Syndrome?
A. Gross hematuria and RBC casts
